From: Ali.Huang (zero5291@gmail.com)
Date: Mon Aug 22 2005 - 10:40:02 GMT-3
hi Scott,group,
The following configuration was my recall,
R2:
int t0
ip unnumber s0.24
tun source s0.24
tun dest 150.50.24.4
int s0
encap fram
no fram inv
interface s0.24 point-to-point
ip add 150.50.24.2 255.255.255.0
fram interface-dlci 204 protocol ip 150.50.24.4
router os 10
net 150.50.0.0 0.0.255.255 area 0
R4:
int t0
ip unn s0
tun so s0
tun de 150.50.24.2
int s0
encap fram
ip address 150.50.24.4 255.255.255.0
fram map ip 150.50.24.2 402 broadcast
ip os net point-to-multipoint
router os 10
net 150.50.24.4 0.0.0.0 area 0
net 10.1.1.4 0.0.0.0 area 1 //Ethernet 0
Symptoms:
The OSPF neighbors are unstable,I checked on R2,found the dead-time
was near to 30s,then disappear,then I checked the tunnel 0 down(line
protocol).
I checked R4,and found the neighbor was waiting our of dead-time,and
the tunnel 0 of R4 was always up.
If I issued the command ip ospf hello-interval 10 on R4' s0,I found
there were two neighbors with the same router-id on R2,one from tunnel
0 ,the other form s0.24.They works well.
I also tried on two ethernet,and I use ip ospf network to change
network type,one p2p,one p2m,but no change.I think it was not relate
with FR or Ethernet,only OSPF?
I didn't know why the virtual interface may be down?or it was affected
by OSPF protocol?
Thanks,regards
Ali.Huang
On 8/22/05, Scott Morris <swm@emanon.com> wrote:
> What's the rest of the config? (e.g. Frame Relay stuff, tunnel destination,
> etc.)
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Ali.Huang
> Sent: Monday, August 22, 2005 12:27 AM
> To: ccielab@groupstudy.com
> Subject: GRE Tunnel always down
>
> Hi,group,
> When I bulit a tunnel between subinterface and physical intterface and both
> of them encapsulated with fram-relay,I found the line protocol of tunnel0
> using subinterface always up and down.But the peer is always up.I wonder if
> the tunnel interface couldn't work well on FR subinterface?
>
> R2#sh ip int t0
> Tunnel0 is up, line protocol is down
> Interface is unnumbered. Using address of Serial0.24 (150.50.24.2)
> Broadcast address is 255.255.255.255
> MTU is 1476 bytes
> --
> THX.
> Ali.huang
>
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>
-- THX. Ali.huang
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